Advertisement
7
TROUBLESHOOTING
Your Honeywell thermostat requires little or no attention. Most problems can generally be traced to the following:
Symptom
Compressor doesn't
provide warm air.
Compressor will not
stop delivering warm
air.
Thermostat setting
and thermometer
reading disagree.
Compressor doesn't
provide cool air.
69-0846
Problem
Equipment has compressor
protection time delay.
System switch at OFF or COOL
position.
Blown fuse or tripped circuit
breaker.
Heat pump power switch is at
OFF.
Improper connections to
thermostat.
Defective thermostat. (Here's
how you know: Remove the
thermostat from the wall.
Disconnect wire from W1
terminal. Touch W1 wire to
terminal R. The thermostat is
defective if the compressor
starts.) Some systems have a
time delay, so allow five
minutes. See step 5.
Other.
Turn temperature setting lever
all the way down.
Thermostat is not level.
Thermostat affected by drafts or
radiant heat.
Equipment has compressor
protection time delay.
System switch is in OFF or
HEAT position.
Blown fuse or tripped circuit
breaker.
Compressor switch (located
outdoors) is at OFF.
Improper connections to
thermostat.
Defective thermostat. (Here's
how you know: Remove the
thermostat from the wall.
Disconnect wire from Y1
terminal. Touch Y1 wire to
terminal R. The thermostat is
defective if the compressor
starts. Some systems have a
time delay, so allow at least five
minutes.) See NOTE in step 5.
Other.
Corrective Action
Wait five minutes and check for heat.
Move switch to HEAT position.
Replace fuse or reset circuit breaker.
Switch to ON.
With power to furnace at OFF, tighten all mounting and
terminal screws. Repair frayed or broken wires.
Exchange the thermostat (see Warranty).
Contact a qualified service technician for assistance.
Heater should start to cool within minutes. If not, turn off
power at the main service panel, and contact qualified
service technician.
Recheck the thermostat position on the wall. Use level to
make sure it is level. See step 4.
Contact a qualified service technician to change the
location. The thermostat should be about 5 ft [1.5m] above
the floor and on an inside wall.
Wait five minutes and check for cool.
Move switch to COOL position.
Replace fuse or reset circuit breaker.
Move switch to ON position.
With power to heat pump OFF, tighten all mounting and
terminal screws. Repair broken wires.
Exchange the thermostat. See Warranty.
Contact service technician for assistance.
4
Advertisement
